Pileus Git - ~andy/gtk/blob - gtk/gtkplug.c

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free
  16  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17  */
  18
  19 /* By Owen Taylor <otaylor@gtk.org>              98/4/4 */
  20
  21 /*
  22  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  23  * file for a list of people on the GTK+ Team.  See the ChangeLog
  24  * files for a list of changes.  These files are distributed with
  25  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  26  */
  27
  28 #include "config.h"
  29
  30 #include "gtkmain.h"
  31 #include "gtkmarshalers.h"
  32 #include "gtkplug.h"
  33 #include "gtkintl.h"
  34 #include "gtkprivate.h"
  35 #include "gtkplugprivate.h"
  36
  37 #include "gtkalias.h"
  38
  39 static void            gtk_plug_get_property          (GObject     *object,
  40                                                        guint        prop_id,
  41                                                        GValue      *value,
  42                                                        GParamSpec  *pspec);
  43 static void            gtk_plug_finalize              (GObject          *object);
  44 static void            gtk_plug_realize               (GtkWidget        *widget);
  45 static void            gtk_plug_unrealize             (GtkWidget        *widget);
  46 static void            gtk_plug_show                  (GtkWidget        *widget);
  47 static void            gtk_plug_hide                  (GtkWidget        *widget);
  48 static void            gtk_plug_map                   (GtkWidget        *widget);
  49 static void            gtk_plug_unmap                 (GtkWidget        *widget);
  50 static void            gtk_plug_size_allocate         (GtkWidget        *widget,
  51                                                        GtkAllocation    *allocation);
  52 static gboolean        gtk_plug_key_press_event       (GtkWidget        *widget,
  53                                                        GdkEventKey      *event);
  54 static gboolean        gtk_plug_focus_event           (GtkWidget        *widget,
  55                                                        GdkEventFocus    *event);
  56 static void            gtk_plug_set_focus             (GtkWindow        *window,
  57                                                        GtkWidget        *focus);
  58 static gboolean        gtk_plug_focus                 (GtkWidget        *widget,
  59                                                        GtkDirectionType  direction);
  60 static void            gtk_plug_check_resize          (GtkContainer     *container);
  61 static void            gtk_plug_keys_changed          (GtkWindow        *window);
  62
  63 static GtkBinClass *bin_class = NULL;
  64
  65 typedef struct
  66 {
  67   guint                  accelerator_key;
  68   GdkModifierType        accelerator_mods;
  69 } GrabbedKey;
  70
  71 enum {
  72   PROP_0,
  73   PROP_EMBEDDED,
  74   PROP_SOCKET_WINDOW
  75 };
  76
  77 enum {
  78   EMBEDDED,
  79   LAST_SIGNAL
  80 };
  81
  82 static guint plug_signals[LAST_SIGNAL] = { 0 };
  83
  84 G_DEFINE_TYPE (GtkPlug, gtk_plug, GTK_TYPE_WINDOW)
  85
  86 static void
  87 gtk_plug_get_property (GObject    *object,
  88                        guint       prop_id,
  89                        GValue     *value,
  90                        GParamSpec *pspec)
  91 {
  92   GtkPlug *plug = GTK_PLUG (object);
  93
  94   switch (prop_id)
  95     {
  96     case PROP_EMBEDDED:
  97       g_value_set_boolean (value, plug->socket_window != NULL);
  98       break;
  99     case PROP_SOCKET_WINDOW:
 100       g_value_set_object (value, plug->socket_window);
 101       break;
 102     default:
 103       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 104       break;
 105     }
 106 }
 107
 108 static void
 109 gtk_plug_class_init (GtkPlugClass *class)
 110 {
 111   GObjectClass *gobject_class = (GObjectClass *)class;
 112   GtkWidgetClass *widget_class = (GtkWidgetClass *)class;
 113   GtkWindowClass *window_class = (GtkWindowClass *)class;
 114   GtkContainerClass *container_class = (GtkContainerClass *)class;
 115
 116   bin_class = g_type_class_peek (GTK_TYPE_BIN);
 117
 118   gobject_class->get_property = gtk_plug_get_property;
 119   gobject_class->finalize = gtk_plug_finalize;
 120
 121   widget_class->realize = gtk_plug_realize;
 122   widget_class->unrealize = gtk_plug_unrealize;
 123   widget_class->key_press_event = gtk_plug_key_press_event;
 124   widget_class->focus_in_event = gtk_plug_focus_event;
 125   widget_class->focus_out_event = gtk_plug_focus_event;
 126
 127   widget_class->show = gtk_plug_show;
 128   widget_class->hide = gtk_plug_hide;
 129   widget_class->map = gtk_plug_map;
 130   widget_class->unmap = gtk_plug_unmap;
 131   widget_class->size_allocate = gtk_plug_size_allocate;
 132
 133   widget_class->focus = gtk_plug_focus;
 134
 135   container_class->check_resize = gtk_plug_check_resize;
 136
 137   window_class->set_focus = gtk_plug_set_focus;
 138   window_class->keys_changed = gtk_plug_keys_changed;
 139
 140   /**
 141    * GtkPlug:embedded:
 142    *
 143    * %TRUE if the plug is embedded in a socket.
 144    *
 145    * Since: 2.12
 146    */
 147   g_object_class_install_property (gobject_class,
 148                                    PROP_EMBEDDED,
 149                                    g_param_spec_boolean ("embedded",
 150                                                          P_("Embedded"),
 151                                                          P_("Whether or not the plug is embedded"),
 152                                                          FALSE,
 153                                                          GTK_PARAM_READABLE));
 154
 155   /**
 156    * GtkPlug:socket-window:
 157    *
 158    * The window of the socket the plug is embedded in.
 159    *
 160    * Since: 2.14
 161    */
 162   g_object_class_install_property (gobject_class,
 163                                    PROP_SOCKET_WINDOW,
 164                                    g_param_spec_object ("socket-window",
 165                                                         P_("Socket Window"),
 166                                                         P_("The window of the socket the plug is embedded in"),
 167                                                         GDK_TYPE_WINDOW,
 168                                                         GTK_PARAM_READABLE));
 169
 170   /**
 171    * GtkPlug::embedded:
 172    * @plug: the object on which the signal was emitted
 173    *
 174    * Gets emitted when the plug becomes embedded in a socket
 175    * and when the embedding ends.
 176    */
 177   plug_signals[EMBEDDED] =
 178     g_signal_new (I_("embedded"),
 179                   G_OBJECT_CLASS_TYPE (class),
 180                   G_SIGNAL_RUN_LAST,
 181                   G_STRUCT_OFFSET (GtkPlugClass, embedded),
 182                   NULL, NULL,
 183                   _gtk_marshal_VOID__VOID,
 184                   G_TYPE_NONE, 0);
 185 }
 186
 187 static void
 188 gtk_plug_init (GtkPlug *plug)
 189 {
 190   GtkWindow *window;
 191
 192   window = GTK_WINDOW (plug);
 193
 194   window->type = GTK_WINDOW_TOPLEVEL;
 195 }
 196
 197 static void
 198 gtk_plug_set_is_child (GtkPlug  *plug,
 199                        gboolean  is_child)
 200 {
 201   g_assert (!GTK_WIDGET (plug)->parent);
 202
 203   if (is_child)
 204     {
 205       if (plug->modality_window)
 206         _gtk_plug_handle_modality_off (plug);
 207
 208       if (plug->modality_group)
 209         {
 210           gtk_window_group_remove_window (plug->modality_group, GTK_WINDOW (plug));
 211           g_object_unref (plug->modality_group);
 212           plug->modality_group = NULL;
 213         }
 214
 215       /* As a toplevel, the MAPPED flag doesn't correspond
 216        * to whether the widget->window is mapped; we unmap
 217        * here, but don't bother remapping -- we will get mapped
 218        * by gtk_widget_set_parent ().
 219        */
 220       if (GTK_WIDGET_MAPPED (plug))
 221         gtk_widget_unmap (GTK_WIDGET (plug));
 222
 223       _gtk_window_set_is_toplevel (GTK_WINDOW (plug), FALSE);
 224       gtk_container_set_resize_mode (GTK_CONTAINER (plug), GTK_RESIZE_PARENT);
 225
 226       _gtk_widget_propagate_hierarchy_changed (GTK_WIDGET (plug), GTK_WIDGET (plug));
 227     }
 228   else
 229     {
 230       if (GTK_WINDOW (plug)->focus_widget)
 231         gtk_window_set_focus (GTK_WINDOW (plug), NULL);
 232       if (GTK_WINDOW (plug)->default_widget)
 233         gtk_window_set_default (GTK_WINDOW (plug), NULL);
 234
 235       plug->modality_group = gtk_window_group_new ();
 236       gtk_window_group_add_window (plug->modality_group, GTK_WINDOW (plug));
 237
 238       _gtk_window_set_is_toplevel (GTK_WINDOW (plug), TRUE);
 239       gtk_container_set_resize_mode (GTK_CONTAINER (plug), GTK_RESIZE_QUEUE);
 240
 241       _gtk_widget_propagate_hierarchy_changed (GTK_WIDGET (plug), NULL);
 242     }
 243 }
 244
 245 /**
 246  * gtk_plug_get_id:
 247  * @plug: a #GtkPlug.
 248  *
 249  * Gets the window ID of a #GtkPlug widget, which can then
 250  * be used to embed this window inside another window, for
 251  * instance with gtk_socket_add_id().
 252  *
 253  * Return value: the window ID for the plug
 254  **/
 255 GdkNativeWindow
 256 gtk_plug_get_id (GtkPlug *plug)
 257 {
 258   g_return_val_if_fail (GTK_IS_PLUG (plug), 0);
 259
 260   if (!GTK_WIDGET_REALIZED (plug))
 261     gtk_widget_realize (GTK_WIDGET (plug));
 262
 263   return _gtk_plug_windowing_get_id (plug);
 264 }
 265
 266 /**
 267  * gtk_plug_get_embedded:
 268  * @plug: a #GtkPlug
 269  *
 270  * Determines whether the plug is embedded in a socket.
 271  *
 272  * Return value: %TRUE if the plug is embedded in a socket
 273  *
 274  * Since: 2.14
 275  **/
 276 gboolean
 277 gtk_plug_get_embedded (GtkPlug *plug)
 278 {
 279   g_return_val_if_fail (GTK_IS_PLUG (plug), FALSE);
 280
 281   return plug->socket_window != NULL;
 282 }
 283
 284 /**
 285  * gtk_plug_get_socket_window:
 286  * @plug: a #GtkPlug
 287  *
 288  * Retrieves the socket the plug is embedded in.
 289  *
 290  * Return value: the window of the socket, or %NULL
 291  *
 292  * Since: 2.14
 293  **/
 294 GdkWindow *
 295 gtk_plug_get_socket_window (GtkPlug *plug)
 296 {
 297   g_return_val_if_fail (GTK_IS_PLUG (plug), NULL);
 298
 299   return plug->socket_window;
 300 }
 301
 302 /**
 303  * _gtk_plug_add_to_socket:
 304  * @plug: a #GtkPlug
 305  * @socket_: a #GtkSocket
 306  *
 307  * Adds a plug to a socket within the same application.
 308  **/
 309 void
 310 _gtk_plug_add_to_socket (GtkPlug   *plug,
 311                          GtkSocket *socket_)
 312 {
 313   GtkWidget *widget;
 314   gint w, h;
 315
 316   g_return_if_fail (GTK_IS_PLUG (plug));
 317   g_return_if_fail (GTK_IS_SOCKET (socket_));
 318   g_return_if_fail (GTK_WIDGET_REALIZED (socket_));
 319
 320   widget = GTK_WIDGET (plug);
 321
 322   gtk_plug_set_is_child (plug, TRUE);
 323   plug->same_app = TRUE;
 324   socket_->same_app = TRUE;
 325   socket_->plug_widget = widget;
 326
 327   plug->socket_window = GTK_WIDGET (socket_)->window;
 328   g_object_ref (plug->socket_window);
 329
 330   if (GTK_WIDGET_REALIZED (widget))
 331     {
 332       gdk_drawable_get_size (GDK_DRAWABLE (widget->window), &w, &h);
 333       gdk_window_reparent (widget->window, plug->socket_window, -w, -h);
 334     }
 335
 336   gtk_widget_set_parent (widget, GTK_WIDGET (socket_));
 337
 338   g_signal_emit_by_name (socket_, "plug-added");
 339 }
 340
 341 /**
 342  * _gtk_plug_send_delete_event:
 343  * @widget: a #GtkWidget
 344  *
 345  * Send a GDK_DELETE event to the @widget and destroy it if
 346  * necessary. Internal GTK function, called from this file or the
 347  * backend-specific GtkPlug implementation.
 348  */
 349 void
 350 _gtk_plug_send_delete_event (GtkWidget *widget)
 351 {
 352   GdkEvent *event = gdk_event_new (GDK_DELETE);
 353
 354   event->any.window = g_object_ref (widget->window);
 355   event->any.send_event = FALSE;
 356
 357   g_object_ref (widget);
 358
 359   if (!gtk_widget_event (widget, event))
 360     gtk_widget_destroy (widget);
 361
 362   g_object_unref (widget);
 363
 364   gdk_event_free (event);
 365 }
 366
 367 /**
 368  * _gtk_plug_remove_from_socket:
 369  * @plug: a #GtkPlug
 370  * @socket_: a #GtkSocket
 371  *
 372  * Removes a plug from a socket within the same application.
 373  **/
 374 void
 375 _gtk_plug_remove_from_socket (GtkPlug   *plug,
 376                               GtkSocket *socket_)
 377 {
 378   GtkWidget *widget;
 379   gboolean result;
 380   gboolean widget_was_visible;
 381
 382   g_return_if_fail (GTK_IS_PLUG (plug));
 383   g_return_if_fail (GTK_IS_SOCKET (socket_));
 384   g_return_if_fail (GTK_WIDGET_REALIZED (plug));
 385
 386   widget = GTK_WIDGET (plug);
 387
 388   if (GTK_WIDGET_IN_REPARENT (widget))
 389     return;
 390
 391   g_object_ref (plug);
 392   g_object_ref (socket_);
 393
 394   widget_was_visible = GTK_WIDGET_VISIBLE (plug);
 395
 396   gdk_window_hide (widget->window);
 397   GTK_PRIVATE_SET_FLAG (plug, GTK_IN_REPARENT);
 398   gdk_window_reparent (widget->window,
 399                        gtk_widget_get_root_window (widget),
 400                        0, 0);
 401   gtk_widget_unparent (GTK_WIDGET (plug));
 402   GTK_PRIVATE_UNSET_FLAG (plug, GTK_IN_REPARENT);
 403
 404   socket_->plug_widget = NULL;
 405   if (socket_->plug_window != NULL)
 406     {
 407       g_object_unref (socket_->plug_window);
 408       socket_->plug_window = NULL;
 409     }
 410
 411   socket_->same_app = FALSE;
 412
 413   plug->same_app = FALSE;
 414   if (plug->socket_window != NULL)
 415     {
 416       g_object_unref (plug->socket_window);
 417       plug->socket_window = NULL;
 418     }
 419   gtk_plug_set_is_child (plug, FALSE);
 420
 421   g_signal_emit_by_name (socket_, "plug-removed", &result);
 422   if (!result)
 423     gtk_widget_destroy (GTK_WIDGET (socket_));
 424
 425   if (widget->window)
 426     _gtk_plug_send_delete_event (widget);
 427
 428   g_object_unref (plug);
 429
 430   if (widget_was_visible && GTK_WIDGET_VISIBLE (socket_))
 431     gtk_widget_queue_resize (GTK_WIDGET (socket_));
 432
 433   g_object_unref (socket_);
 434 }
 435
 436 /**
 437  * gtk_plug_construct:
 438  * @plug: a #GtkPlug.
 439  * @socket_id: the XID of the socket's window.
 440  *
 441  * Finish the initialization of @plug for a given #GtkSocket identified by
 442  * @socket_id. This function will generally only be used by classes deriving from #GtkPlug.
 443  **/
 444 void
 445 gtk_plug_construct (GtkPlug         *plug,
 446                     GdkNativeWindow  socket_id)
 447 {
 448   gtk_plug_construct_for_display (plug, gdk_display_get_default (), socket_id);
 449 }
 450
 451 /**
 452  * gtk_plug_construct_for_display:
 453  * @plug: a #GtkPlug.
 454  * @display: the #GdkDisplay associated with @socket_id's
 455  *           #GtkSocket.
 456  * @socket_id: the XID of the socket's window.
 457  *
 458  * Finish the initialization of @plug for a given #GtkSocket identified by
 459  * @socket_id which is currently displayed on @display.
 460  * This function will generally only be used by classes deriving from #GtkPlug.
 461  *
 462  * Since: 2.2
 463  **/
 464 void
 465 gtk_plug_construct_for_display (GtkPlug         *plug,
 466                                 GdkDisplay      *display,
 467                                 GdkNativeWindow  socket_id)
 468 {
 469   if (socket_id)
 470     {
 471       gpointer user_data = NULL;
 472
 473       plug->socket_window = gdk_window_lookup_for_display (display, socket_id);
 474       if (plug->socket_window)
 475         {
 476           gdk_window_get_user_data (plug->socket_window, &user_data);
 477
 478           if (user_data)
 479             {
 480               if (GTK_IS_SOCKET (user_data))
 481                 _gtk_plug_add_to_socket (plug, user_data);
 482               else
 483                 {
 484                   g_warning (G_STRLOC "Can't create GtkPlug as child of non-GtkSocket");
 485                   plug->socket_window = NULL;
 486                 }
 487             }
 488           else
 489             g_object_ref (plug->socket_window);
 490         }
 491       else
 492         plug->socket_window = gdk_window_foreign_new_for_display (display, socket_id);
 493
 494       if (plug->socket_window) {
 495         g_signal_emit (plug, plug_signals[EMBEDDED], 0);
 496
 497         g_object_notify (G_OBJECT (plug), "embedded");
 498       }
 499     }
 500 }
 501
 502 /**
 503  * gtk_plug_new:
 504  * @socket_id:  the window ID of the socket, or 0.
 505  *
 506  * Creates a new plug widget inside the #GtkSocket identified
 507  * by @socket_id. If @socket_id is 0, the plug is left "unplugged" and
 508  * can later be plugged into a #GtkSocket by  gtk_socket_add_id().
 509  *
 510  * Return value: the new #GtkPlug widget.
 511  **/
 512 GtkWidget*
 513 gtk_plug_new (GdkNativeWindow socket_id)
 514 {
 515   return gtk_plug_new_for_display (gdk_display_get_default (), socket_id);
 516 }
 517
 518 /**
 519  * gtk_plug_new_for_display:
 520  * @display : the #GdkDisplay on which @socket_id is displayed
 521  * @socket_id: the XID of the socket's window.
 522  *
 523  * Create a new plug widget inside the #GtkSocket identified by socket_id.
 524  *
 525  * Return value: the new #GtkPlug widget.
 526  *
 527  * Since: 2.2
 528  */
 529 GtkWidget*
 530 gtk_plug_new_for_display (GdkDisplay      *display,
 531                           GdkNativeWindow  socket_id)
 532 {
 533   GtkPlug *plug;
 534
 535   plug = g_object_new (GTK_TYPE_PLUG, NULL);
 536   gtk_plug_construct_for_display (plug, display, socket_id);
 537   return GTK_WIDGET (plug);
 538 }
 539
 540 static void
 541 gtk_plug_finalize (GObject *object)
 542 {
 543   GtkPlug *plug = GTK_PLUG (object);
 544
 545   if (plug->grabbed_keys)
 546     {
 547       g_hash_table_destroy (plug->grabbed_keys);
 548       plug->grabbed_keys = NULL;
 549     }
 550
 551   G_OBJECT_CLASS (gtk_plug_parent_class)->finalize (object);
 552 }
 553
 554 static void
 555 gtk_plug_unrealize (GtkWidget *widget)
 556 {
 557   GtkPlug *plug = GTK_PLUG (widget);
 558
 559   if (plug->socket_window != NULL)
 560     {
 561       gdk_window_set_user_data (plug->socket_window, NULL);
 562       g_object_unref (plug->socket_window);
 563       plug->socket_window = NULL;
 564
 565       g_object_notify (G_OBJECT (widget), "embedded");
 566     }
 567
 568   if (!plug->same_app)
 569     {
 570       if (plug->modality_window)
 571         _gtk_plug_handle_modality_off (plug);
 572
 573       gtk_window_group_remove_window (plug->modality_group, GTK_WINDOW (plug));
 574       g_object_unref (plug->modality_group);
 575     }
 576
 577   GTK_WIDGET_CLASS (gtk_plug_parent_class)->unrealize (widget);
 578 }
 579
 580 static void
 581 gtk_plug_realize (GtkWidget *widget)
 582 {
 583   GtkWindow *window = GTK_WINDOW (widget);
 584   GtkPlug *plug = GTK_PLUG (widget);
 585   GdkWindowAttr attributes;
 586   gint attributes_mask;
 587
 588   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 589
 590   attributes.window_type = GDK_WINDOW_CHILD;    /* XXX GDK_WINDOW_PLUG ? */
 591   attributes.title = window->title;
 592   attributes.wmclass_name = window->wmclass_name;
 593   attributes.wmclass_class = window->wmclass_class;
 594   attributes.width = widget->allocation.width;
 595   attributes.height = widget->allocation.height;
 596   attributes.wclass = GDK_INPUT_OUTPUT;
 597
 598   /* this isn't right - we should match our parent's visual/colormap.
 599    * though that will require handling "foreign" colormaps */
 600   attributes.visual = gtk_widget_get_visual (widget);
 601   attributes.colormap = gtk_widget_get_colormap (widget);
 602   attributes.event_mask = gtk_widget_get_events (widget);
 603   attributes.event_mask |= (GDK_EXPOSURE_MASK |
 604                             GDK_KEY_PRESS_MASK |
 605                             GDK_KEY_RELEASE_MASK |
 606                             GDK_ENTER_NOTIFY_MASK |
 607                             GDK_LEAVE_NOTIFY_MASK |
 608                             GDK_STRUCTURE_MASK);
 609
 610   attributes_mask = GDK_WA_VISUAL | GDK_WA_COLORMAP;
 611   attributes_mask |= (window->title ? GDK_WA_TITLE : 0);
 612   attributes_mask |= (window->wmclass_name ? GDK_WA_WMCLASS : 0);
 613
 614   if (gtk_widget_is_toplevel (widget))
 615     {
 616       attributes.window_type = GDK_WINDOW_TOPLEVEL;
 617
 618       gdk_error_trap_push ();
 619       if (plug->socket_window)
 620         widget->window = gdk_window_new (plug->socket_window,
 621                                          &attributes, attributes_mask);
 622       else /* If it's a passive plug, we use the root window */
 623         widget->window = gdk_window_new (gtk_widget_get_root_window (widget),
 624                                          &attributes, attributes_mask);
 625
 626       gdk_display_sync (gtk_widget_get_display (widget));
 627       if (gdk_error_trap_pop ()) /* Uh-oh */
 628         {
 629           gdk_error_trap_push ();
 630           gdk_window_destroy (widget->window);
 631           gdk_flush ();
 632           gdk_error_trap_pop ();
 633           widget->window = gdk_window_new (gtk_widget_get_root_window (widget),
 634                                            &attributes, attributes_mask);
 635         }
 636
 637       gdk_window_add_filter (widget->window,
 638                              _gtk_plug_windowing_filter_func,
 639                              widget);
 640
 641       plug->modality_group = gtk_window_group_new ();
 642       gtk_window_group_add_window (plug->modality_group, window);
 643
 644       _gtk_plug_windowing_realize_toplevel (plug);
 645     }
 646   else
 647     widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
 648                                      &attributes, attributes_mask);
 649
 650   gdk_window_set_user_data (widget->window, window);
 651
 652   widget->style = gtk_style_attach (widget->style, widget->window);
 653   gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
 654
 655   gdk_window_enable_synchronized_configure (widget->window);
 656 }
 657
 658 static void
 659 gtk_plug_show (GtkWidget *widget)
 660 {
 661   if (gtk_widget_is_toplevel (widget))
 662     GTK_WIDGET_CLASS (gtk_plug_parent_class)->show (widget);
 663   else
 664     GTK_WIDGET_CLASS (bin_class)->show (widget);
 665 }
 666
 667 static void
 668 gtk_plug_hide (GtkWidget *widget)
 669 {
 670   if (gtk_widget_is_toplevel (widget))
 671     GTK_WIDGET_CLASS (gtk_plug_parent_class)->hide (widget);
 672   else
 673     GTK_WIDGET_CLASS (bin_class)->hide (widget);
 674 }
 675
 676 /* From gdkinternals.h */
 677 void gdk_synthesize_window_state (GdkWindow     *window,
 678                                   GdkWindowState unset_flags,
 679                                   GdkWindowState set_flags);
 680
 681 static void
 682 gtk_plug_map (GtkWidget *widget)
 683 {
 684   if (gtk_widget_is_toplevel (widget))
 685     {
 686       GtkBin *bin = GTK_BIN (widget);
 687       GtkPlug *plug = GTK_PLUG (widget);
 688
 689       GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
 690
 691       if (bin->child &&
 692           GTK_WIDGET_VISIBLE (bin->child) &&
 693           !GTK_WIDGET_MAPPED (bin->child))
 694         gtk_widget_map (bin->child);
 695
 696       _gtk_plug_windowing_map_toplevel (plug);
 697
 698       gdk_synthesize_window_state (widget->window,
 699                                    GDK_WINDOW_STATE_WITHDRAWN,
 700                                    0);
 701     }
 702   else
 703     GTK_WIDGET_CLASS (bin_class)->map (widget);
 704 }
 705
 706 static void
 707 gtk_plug_unmap (GtkWidget *widget)
 708 {
 709   if (gtk_widget_is_toplevel (widget))
 710     {
 711       GtkPlug *plug = GTK_PLUG (widget);
 712
 713       GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
 714
 715       gdk_window_hide (widget->window);
 716
 717       _gtk_plug_windowing_unmap_toplevel (plug);
 718
 719       gdk_synthesize_window_state (widget->window,
 720                                    0,
 721                                    GDK_WINDOW_STATE_WITHDRAWN);
 722     }
 723   else
 724     GTK_WIDGET_CLASS (bin_class)->unmap (widget);
 725 }
 726
 727 static void
 728 gtk_plug_size_allocate (GtkWidget     *widget,
 729                         GtkAllocation *allocation)
 730 {
 731   if (gtk_widget_is_toplevel (widget))
 732     GTK_WIDGET_CLASS (gtk_plug_parent_class)->size_allocate (widget, allocation);
 733   else
 734     {
 735       GtkBin *bin = GTK_BIN (widget);
 736
 737       widget->allocation = *allocation;
 738
 739       if (GTK_WIDGET_REALIZED (widget))
 740         gdk_window_move_resize (widget->window,
 741                                 allocation->x, allocation->y,
 742                                 allocation->width, allocation->height);
 743
 744       if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
 745         {
 746           GtkAllocation child_allocation;
 747
 748           child_allocation.x = child_allocation.y = GTK_CONTAINER (widget)->border_width;
 749           child_allocation.width =
 750             MAX (1, (gint)allocation->width - child_allocation.x * 2);
 751           child_allocation.height =
 752             MAX (1, (gint)allocation->height - child_allocation.y * 2);
 753
 754           gtk_widget_size_allocate (bin->child, &child_allocation);
 755         }
 756
 757     }
 758 }
 759
 760 static gboolean
 761 gtk_plug_key_press_event (GtkWidget   *widget,
 762                           GdkEventKey *event)
 763 {
 764   if (gtk_widget_is_toplevel (widget))
 765     return GTK_WIDGET_CLASS (gtk_plug_parent_class)->key_press_event (widget, event);
 766   else
 767     return FALSE;
 768 }
 769
 770 static gboolean
 771 gtk_plug_focus_event (GtkWidget      *widget,
 772                       GdkEventFocus  *event)
 773 {
 774   /* We eat focus-in events and focus-out events, since they
 775    * can be generated by something like a keyboard grab on
 776    * a child of the plug.
 777    */
 778   return FALSE;
 779 }
 780
 781 static void
 782 gtk_plug_set_focus (GtkWindow *window,
 783                     GtkWidget *focus)
 784 {
 785   GtkPlug *plug = GTK_PLUG (window);
 786
 787   GTK_WINDOW_CLASS (gtk_plug_parent_class)->set_focus (window, focus);
 788
 789   /* Ask for focus from embedder
 790    */
 791
 792   if (focus && !window->has_toplevel_focus)
 793     _gtk_plug_windowing_set_focus (plug);
 794 }
 795
 796 static guint
 797 grabbed_key_hash (gconstpointer a)
 798 {
 799   const GrabbedKey *key = a;
 800   guint h;
 801
 802   h = key->accelerator_key << 16;
 803   h ^= key->accelerator_key >> 16;
 804   h ^= key->accelerator_mods;
 805
 806   return h;
 807 }
 808
 809 static gboolean
 810 grabbed_key_equal (gconstpointer a, gconstpointer b)
 811 {
 812   const GrabbedKey *keya = a;
 813   const GrabbedKey *keyb = b;
 814
 815   return (keya->accelerator_key == keyb->accelerator_key &&
 816           keya->accelerator_mods == keyb->accelerator_mods);
 817 }
 818
 819 static void
 820 add_grabbed_key (gpointer key, gpointer val, gpointer data)
 821 {
 822   GrabbedKey *grabbed_key = key;
 823   GtkPlug *plug = data;
 824
 825   if (!plug->grabbed_keys ||
 826       !g_hash_table_lookup (plug->grabbed_keys, grabbed_key))
 827     {
 828       _gtk_plug_windowing_add_grabbed_key (plug,
 829                                            grabbed_key->accelerator_key,
 830                                            grabbed_key->accelerator_mods);
 831     }
 832 }
 833
 834 static void
 835 add_grabbed_key_always (gpointer key,
 836                         gpointer val,
 837                         gpointer data)
 838 {
 839   GrabbedKey *grabbed_key = key;
 840   GtkPlug *plug = data;
 841
 842   _gtk_plug_windowing_add_grabbed_key (plug,
 843                                        grabbed_key->accelerator_key,
 844                                        grabbed_key->accelerator_mods);
 845 }
 846
 847 /**
 848  * _gtk_plug_add_all_grabbed_keys:
 849  *
 850  * @plug: a #GtkPlug
 851  *
 852  * Calls _gtk_plug_windowing_add_grabbed_key() on all the grabbed keys
 853  * in the @plug.
 854  */
 855 void
 856 _gtk_plug_add_all_grabbed_keys (GtkPlug *plug)
 857 {
 858   if (plug->grabbed_keys)
 859     g_hash_table_foreach (plug->grabbed_keys, add_grabbed_key_always, plug);
 860 }
 861
 862 static void
 863 remove_grabbed_key (gpointer key, gpointer val, gpointer data)
 864 {
 865   GrabbedKey *grabbed_key = key;
 866   GtkPlug *plug = data;
 867
 868   if (!plug->grabbed_keys ||
 869       !g_hash_table_lookup (plug->grabbed_keys, grabbed_key))
 870     {
 871       _gtk_plug_windowing_remove_grabbed_key (plug,
 872                                               grabbed_key->accelerator_key,
 873                                               grabbed_key->accelerator_mods);
 874     }
 875 }
 876
 877 static void
 878 keys_foreach (GtkWindow      *window,
 879               guint           keyval,
 880               GdkModifierType modifiers,
 881               gboolean        is_mnemonic,
 882               gpointer        data)
 883 {
 884   GHashTable *new_grabbed_keys = data;
 885   GrabbedKey *key = g_slice_new (GrabbedKey);
 886
 887   key->accelerator_key = keyval;
 888   key->accelerator_mods = modifiers;
 889
 890   g_hash_table_replace (new_grabbed_keys, key, key);
 891 }
 892
 893 static void
 894 grabbed_key_free (gpointer data)
 895 {
 896   g_slice_free (GrabbedKey, data);
 897 }
 898
 899 static void
 900 gtk_plug_keys_changed (GtkWindow *window)
 901 {
 902   GHashTable *new_grabbed_keys, *old_grabbed_keys;
 903   GtkPlug *plug = GTK_PLUG (window);
 904
 905   new_grabbed_keys = g_hash_table_new_full (grabbed_key_hash, grabbed_key_equal, (GDestroyNotify)grabbed_key_free, NULL);
 906   _gtk_window_keys_foreach (window, keys_foreach, new_grabbed_keys);
 907
 908   if (plug->socket_window)
 909     g_hash_table_foreach (new_grabbed_keys, add_grabbed_key, plug);
 910
 911   old_grabbed_keys = plug->grabbed_keys;
 912   plug->grabbed_keys = new_grabbed_keys;
 913
 914   if (old_grabbed_keys)
 915     {
 916       if (plug->socket_window)
 917         g_hash_table_foreach (old_grabbed_keys, remove_grabbed_key, plug);
 918       g_hash_table_destroy (old_grabbed_keys);
 919     }
 920 }
 921
 922 static gboolean
 923 gtk_plug_focus (GtkWidget        *widget,
 924                 GtkDirectionType  direction)
 925 {
 926   GtkBin *bin = GTK_BIN (widget);
 927   GtkPlug *plug = GTK_PLUG (widget);
 928   GtkWindow *window = GTK_WINDOW (widget);
 929   GtkContainer *container = GTK_CONTAINER (widget);
 930   GtkWidget *old_focus_child = container->focus_child;
 931   GtkWidget *parent;
 932
 933   /* We override GtkWindow's behavior, since we don't want wrapping here.
 934    */
 935   if (old_focus_child)
 936     {
 937       if (gtk_widget_child_focus (old_focus_child, direction))
 938         return TRUE;
 939
 940       if (window->focus_widget)
 941         {
 942           /* Wrapped off the end, clear the focus setting for the toplevel */
 943           parent = window->focus_widget->parent;
 944           while (parent)
 945             {
 946               gtk_container_set_focus_child (GTK_CONTAINER (parent), NULL);
 947               parent = GTK_WIDGET (parent)->parent;
 948             }
 949
 950           gtk_window_set_focus (GTK_WINDOW (container), NULL);
 951         }
 952     }
 953   else
 954     {
 955       /* Try to focus the first widget in the window */
 956       if (bin->child && gtk_widget_child_focus (bin->child, direction))
 957         return TRUE;
 958     }
 959
 960   if (!GTK_CONTAINER (window)->focus_child)
 961     _gtk_plug_windowing_focus_to_parent (plug, direction);
 962
 963   return FALSE;
 964 }
 965
 966 static void
 967 gtk_plug_check_resize (GtkContainer *container)
 968 {
 969   if (gtk_widget_is_toplevel (GTK_WIDGET (container)))
 970     GTK_CONTAINER_CLASS (gtk_plug_parent_class)->check_resize (container);
 971   else
 972     GTK_CONTAINER_CLASS (bin_class)->check_resize (container);
 973 }
 974
 975 /**
 976  * _gtk_plug_handle_modality_on:
 977  *
 978  * @plug: a #GtkPlug
 979  *
 980  * Called from the GtkPlug backend when the corresponding socket has
 981  * told the plug that it modality has toggled on.
 982  */
 983 void
 984 _gtk_plug_handle_modality_on (GtkPlug *plug)
 985 {
 986   if (!plug->modality_window)
 987     {
 988       plug->modality_window = gtk_window_new (GTK_WINDOW_POPUP);
 989       gtk_window_set_screen (GTK_WINDOW (plug->modality_window),
 990                              gtk_widget_get_screen (GTK_WIDGET (plug)));
 991       gtk_widget_realize (plug->modality_window);
 992       gtk_window_group_add_window (plug->modality_group, GTK_WINDOW (plug->modality_window));
 993       gtk_grab_add (plug->modality_window);
 994     }
 995 }
 996
 997 /**
 998  * _gtk_plug_handle_modality_off:
 999  *
1000  * @plug: a #GtkPlug
1001  *
1002  * Called from the GtkPlug backend when the corresponding socket has
1003  * told the plug that it modality has toggled off.
1004  */
1005 void
1006 _gtk_plug_handle_modality_off (GtkPlug *plug)
1007 {
1008   if (plug->modality_window)
1009     {
1010       gtk_widget_destroy (plug->modality_window);
1011       plug->modality_window = NULL;
1012     }
1013 }
1014
1015 /**
1016  * _gtk_plug_focus_first_last:
1017  *
1018  * @plug: a #GtkPlug
1019  * @direction: a direction
1020  *
1021  * Called from the GtkPlug backend when the corresponding socket has
1022  * told the plug that it has received the focus.
1023  */
1024 void
1025 _gtk_plug_focus_first_last (GtkPlug          *plug,
1026                             GtkDirectionType  direction)
1027 {
1028   GtkWindow *window = GTK_WINDOW (plug);
1029   GtkWidget *parent;
1030
1031   if (window->focus_widget)
1032     {
1033       parent = window->focus_widget->parent;
1034       while (parent)
1035         {
1036           gtk_container_set_focus_child (GTK_CONTAINER (parent), NULL);
1037           parent = GTK_WIDGET (parent)->parent;
1038         }
1039
1040       gtk_window_set_focus (GTK_WINDOW (plug), NULL);
1041     }
1042
1043   gtk_widget_child_focus (GTK_WIDGET (plug), direction);
1044 }
1045
1046 #define __GTK_PLUG_C__
1047 #include "gtkaliasdef.c"